<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/118735>118735</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            why scudo killed the process due to out of memory
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          jiangenj
      </td>
    </tr>
</table>

<pre>
    Hi,
I have the poc code which limit RLIMIT_AS to 200MB, but when it executes on arm64 android platform, scudo killed while the same code runs well on amd64 platform.
I want to understand why setting RLIMIT_AS failed and how to overcome it with smaller RLIMIT_AS.

# code
```
#include <sys/time.h>
#include <sys/resource.h>
#include <stdlib.h>

int main(int argc, char** argv)
{
        struct rlimit rlim;
        rlim.rlim_cur = rlim.rlim_max = (200 << 20);
 setrlimit(RLIMIT_AS, &rlim);
        system("ls -l /");

        return 0;
}
```

# build
```
android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android33-clang -static test.c
```

# run
```
/data/local/tmp/a.out
```

# logcat -b crash
```
--------- beginning of crash
11-14 17:19:17.258 13778 13778 F libc    : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 13778 (sh), pid 13778 (sh)
11-14 17:19:17.315 13780 13780 I scudo   : Scudo ERROR: internal map failure (error desc=Out of memory) requesting 8650752KB
11-14 17:19:17.315 13780 13780 F libc    : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 13780 (crash_dump64), pid 13780 (crash_dump64)
11-14 17:19:17.354 13782 13782 I scudo   : Scudo ERROR: internal map failure (error desc=Out of memory) requesting 8650752KB
```



</pre>
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